A 60-year-old woman was beaten on a Northwest Side street overnight and police are looking for the man who did it.

Chicago Police said a woman was walking on the 4100 block of West Eddy when a man demanded her purse and beat her. She went to the Illinois Masonic Medical Center with her eyes swollen shut and her face bruised.

Police said the man approached her around 11:45 p.m. and immediately shoved her to the ground. He tried to grab her purse, but she wouldn't let him take it and fought back.

That's when her attacker started beating her on the left side of her face. She still had her purse, though, and the man ran off without it.

A neighbor told NBCChicago a woman in a nearby house heard the woman screaming and came outside, scaring the man off.

"She came down to the bottom of the stairs and chased off the perpetrator who she said was a young man who ran east on Eddy Street," John Luczak said.

Police said the man was in his 20s and wearing dark pants and a dark hoodie. It doesn't appear he had a weapon, police said.

Published at 6:52 AM CDT on May 3, 2013 | Updated at 8:36 PM CDT on May 3, 2013